.contaner {
  width: 100%;
  height: 100%;
}

.left-nav{
  width: 180px !important;
  background-color: #f9f9f9;
}

.head-nav{
  width: 100%;
  
  padding: 0px;
  margin: 0px;
  overflow: hidden;
}

.el-menu-vertical{
    width: 150px;
    background-color: aqua;
    position: absolute;
    height: 100% !important;
}
.el-submenu .el-menu-item{
  height: 50px;
  line-height: 50px;
  padding: 0 45px;
  min-width: 0px;
}